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From https://github.com/tbroyer/gradle-apt-plugin/issues/17#issuecomment-193221821 1.) Clone https://github.com/traggatt/AptTest 2.) Run ./gradlew eclipseJdtApt eclipseFactorypath via the command line 3.) Import the project via the Gradle import wizard -> Compile error, even though annotation processing is correct setup Clean project -> does not fix it You need to disable and re-enable annotation processing to make it work which should be necessary. Quote from the Github issue: "For as far as I can remember, I always had those kind of issues with Eclipse annotation processing (one of the reasons I personally switched to IntelliJ; YMMV)"
This issue is also mentioned here: https://grundlefleck.github.io/2014/07/23/configuring-google-autovalue.html Quote: There was also a weird issue I’m blaming on Eclipse. Even with the correct config files, when I imported the project, I needed to turn annotation processing off and on again to get it to work. Nasty.
Can we get a description of what the actual repro scenario is? What is it that is special about this particular repro?
(In reply to Walter Harley from comment #2) > Can we get a description of what the actual repro scenario is? What is it > that is special about this particular repro? AFAICT there is nothing special about the repo, I assume any change from outside of the IDE for this preference does not enable the APT processing. I still need to validate that assumption (sorry lack of time so far). My assumption would be that we are missing a preference listener for the AptPreferenceConstants.APT_ENABLED preference. I would guess that we only have a SelectionListener on the button and if I disable and enable annotation processing via the preference setting this functionality is activated. I had a quick lock at SelectionButtonDialogField and ProcessorOptionsAdapter which seems relevant. Are you aware of a preference listener for AptPreferenceConstants.APT_ENABLED?
I created a sample project that integrated lombok + mapstruct + gradle + Eclipse Oxygen (with buildship plugin). The sample project is located at https://github.com/thekalinga/gradle-apt-plugin-eclipse-issue But, Eclipse does not generate mapstruct (one of the annotation processor available in the dependencies) classes. I'm unable to figure out what could be causing this issue I checked with the author of the gradle apt plugin. He says that the eclipse configuration is fine from the point of view of the gradle plugin. I am able to use the same applciation in intellij without any issue Here is the comment from the author https://github.com/tbroyer/gradle-apt-plugin/issues/79#issuecomment-383393121 Is there any chance this issue will be fixed? ADDITIONAL DETAILS -- Here is the version of eclipse I tried this with (+ I also tried in STS, where too I have exactly the same issue) Version: Oxygen.3a Release (4.7.3a) Build id: 20180405-1200 I have used Lombok v1.16.20 "Dancing Elephant" along with eclipse
as of june 2020 this bug is still open (eclipse 4.12). any news?
I don't see a great chance of this getting fixed as the team is smaller now and busy with new Java versions support. If someone is willing to work on this, that'll be welcome.
This bug hasn't had any activity in quite some time. Maybe the problem got resolved, was a duplicate of something else, or became less pressing for some reason - or maybe it's still relevant but just hasn't been looked at yet. If you have further information on the current state of the bug, please add it. The information can be, for example, that the problem still occurs, that you still want the feature, that more information is needed, or that the bug is (for whatever reason) no longer relevant. -- The automated Eclipse Genie.
